It measures 40 billion km across - three million times the size of the Earth - and has been described by scientists as "a monster". The black hole is 500 million trillion km away and was ...

It is 14.6 million miles wide and is four million times the mass of the sun. The black hole spins incredibly fast, at an ...

"Gathering all this mass in under 690 million years is an enormous challenge for theories of supermassive black hole growth," said co-author Eduardo Bañados, from the Carnegie Institution for ...

The black hole's voracious appetite, which has allowed it to pile on more than seven million solar masses in just 12 million years, exceeds the theoretical maximum growth rate and goes some way to ...

And for the first time in history, it has shown us what a black hole around 55 million light years away looks like. This black hole is actually a supermassive black hole. It's about 6.5 billion ...

Astronomers trained the instrument on a number of galaxies in deep space, and at the center of one galaxy spotted a young, ...

WASHINGTON, Nov 5 (Reuters) - At the heart of our Milky Way galaxy lurks a supermassive black hole about four million times the mass of the sun, called Sagittarius A*. In fact, these objects ...